Handle operation on memory sensor.

Usage

memory keyword is needed to instanciate this sting.

var memory = require('memory');

Data accessors

• active
• activeanon
• activefile
• anonpages
• bounce
• buffers
• cached
• commitlimit
• committedas
• dirty
• highfree
• hightotal
• inactive
• inactiveanon
• inactivefile
• kernelstack
• lowfree
• lowtotal
• mapped
• memfree
• memtotal
• mlocked
• nfsunstable
• pagetables
• shmem
• slab
• sreclaimable
• sunreclaimable
• swapcached
• swapfree
• swaptotal
• timestamp
• unevictable
• vmallocchunck
• vmalloctotal
• vmallocused
• writeback
• writebacktmp

Methods

• data

Full Example

var memory = require('memory');
var recorder = require('recorder');

var dataResult = memory.data();


recorder.save({
    'active' : memory.active(),
    'activeanon' : memory.activeanon(),
    'activefile' : memory.activefile(),
    'anonpages' : memory.anonpages(),
    'bounce' : memory.bounce(),
    'buffers' : memory.buffers(),
    'cached' : memory.cached(),
    'commitlimit' : memory.commitlimit(),
    'committedas' : memory.committedas(),
    'dirty' : memory.dirty(),
    'highfree' : memory.highfree(),
    'hightotal' : memory.hightotal(),
    'inactive' : memory.inactive(),
    'inactiveanon' : memory.inactiveanon(),
    'inactivefile' : memory.inactivefile(),
    'kernelstack' : memory.kernelstack(),
    'lowfree' : memory.lowfree(),
    'lowtotal' : memory.lowtotal(),
    'mapped' : memory.mapped(),
    'memfree' : memory.memfree(),
    'memtotal' : memory.memtotal(),
    'mlocked' : memory.mlocked(),
    'nfsunstable' : memory.nfsunstable(),
    'pagetables' : memory.pagetables(),
    'shmem' : memory.shmem(),
    'slab' : memory.slab(),
    'sreclaimable' : memory.sreclaimable(),
    'sunreclaimable' : memory.sunreclaimable(),
    'swapcached' : memory.swapcached(),
    'swapfree' : memory.swapfree(),
    'swaptotal' : memory.swaptotal(),
    'timestamp' : memory.timestamp(),
    'unevictable' : memory.unevictable(),
    'vmallocchunck' : memory.vmallocchunck(),
    'vmalloctotal' : memory.vmalloctotal(),
    'vmallocused' : memory.vmallocused(),
    'writeback' : memory.writeback(),
    'writebacktmp' : memory.writebacktmp(),
    'json' : memory.data()
});

active

Retrieve the The amount of memory, in kibibytes, that has been used more recently and is usually not reclaimed unless absolutely necessary..

active();

Parameters

• None.

Return

• active : Integer, The amount of memory, in kibibytes, that has been used more recently and is usually not reclaimed unless absolutely necessary.

activeanon

Retrieve the The amount of anonymous and tmpfs/shmem memory, in kibibytes, that is in active use, or was in active use since the last time the system moved something to swap..

activeanon();

Parameters

• None.

Return

• activeanon : Integer, The amount of anonymous and tmpfs/shmem memory, in kibibytes, that is in active use, or was in active use since the last time the system moved something to swap.

activefile

Retrieve the The amount of file cache memory, in kibibytes, that is in active use, or was in active use since the last time the system reclaimed memory..

activefile();

Parameters

• None.

Return

• activefile : Integer, The amount of file cache memory, in kibibytes, that is in active use, or was in active use since the last time the system reclaimed memory.

anonpages

Retrieve the The total amount of memory, in kibibytes, used by pages that are not backed by files and are mapped into userspace page tables..

anonpages();

Parameters

• None.

Return

• anonpages : Integer, The total amount of memory, in kibibytes, used by pages that are not backed by files and are mapped into userspace page tables.

bounce

Retrieve the The amount of memory, in kibibytes, used for the block device “bounce buffers”..

bounce();

Parameters

• None.

Return

• bounce : Integer, The amount of memory, in kibibytes, used for the block device “bounce buffers”.

buffers

Retrieve the The amount, in kibibytes, of temporary storage for raw disk blocks..

buffers();

Parameters

• None.

Return

• buffers : Integer, The amount, in kibibytes, of temporary storage for raw disk blocks.

cached

Retrieve the The amount of physical RAM, in kibibytes, used as cache memory..

cached();

Parameters

• None.

Return

• cached : Integer, The amount of physical RAM, in kibibytes, used as cache memory.

commitlimit

Retrieve the The total amount of memory currently available to be allocated on the system based on the overcommit ratio (vm.overcommit_ratio). This limit is only adhered to if strict overcommit accounting is enabled (mode 2 in vm.overcommit_memory)..

commitlimit();

Parameters

• None.

Return

• commitlimit : Integer, The total amount of memory currently available to be allocated on the system based on the overcommit ratio (vm.overcommit_ratio). This limit is only adhered to if strict overcommit accounting is enabled (mode 2 in vm.overcommit_memory).

committedas

Retrieve the The total amount of memory, in kibibytes, estimated to complete the workload. This value represents the worst case scenario value, and also includes swap memory..

committedas();

Parameters

• None.

Return

• committedas : Integer, The total amount of memory, in kibibytes, estimated to complete the workload. This value represents the worst case scenario value, and also includes swap memory.

dirty

Retrieve the The total amount of memory, in kibibytes, waiting to be written back to the disk..

dirty();

Parameters

• None.

Return

• dirty : Integer, The total amount of memory, in kibibytes, waiting to be written back to the disk.

highfree

Retrieve the Amount of free highmem..

highfree();

Parameters

• None.

Return

• highfree : Integer, Amount of free highmem.

hightotal

Retrieve the Total amount of highmem..

hightotal();

Parameters

• None.

Return

• hightotal : Integer, Total amount of highmem.

inactive

Retrieve the The amount of memory, in kibibytes, that has been used less recently and is more eligible to be reclaimed for other purposes..

inactive();

Parameters

• None.

Return

• inactive : Integer, The amount of memory, in kibibytes, that has been used less recently and is more eligible to be reclaimed for other purposes.

inactiveanon

Retrieve the The amount of anonymous and tmpfs/shmem memory, in kibibytes, that is a candidate for eviction..

inactiveanon();

Parameters

• None.

Return

• inactiveanon : Integer, The amount of anonymous and tmpfs/shmem memory, in kibibytes, that is a candidate for eviction.

inactivefile

Retrieve the The amount of file cache memory, in kibibytes, that is newly loaded from the disk, or is a candidate for reclaiming..

inactivefile();

Parameters

• None.

Return

• inactivefile : Integer, The amount of file cache memory, in kibibytes, that is newly loaded from the disk, or is a candidate for reclaiming.

kernelstack

Retrieve the The amount of memory, in kibibytes, used by the kernel stack allocations done for each task in the system..

kernelstack();

Parameters

• None.

Return

• kernelstack : Integer, The amount of memory, in kibibytes, used by the kernel stack allocations done for each task in the system.

lowfree

Retrieve the Amount of free lowmem..

lowfree();

Parameters

• None.

Return

• lowfree : Integer, Amount of free lowmem.

lowtotal

Retrieve the Total amount of lowmem..

lowtotal();

Parameters

• None.

Return

• lowtotal : Integer, Total amount of lowmem.

mapped

Retrieve the The memory, in kibibytes, used for files that have been mmaped, such as libraries..

mapped();

Parameters

• None.

Return

• mapped : Integer, The memory, in kibibytes, used for files that have been mmaped, such as libraries.

memfree

Retrieve the The amount of physical RAM, in kibibytes, left unused by the system..

memfree();

Parameters

• None.

Return

• memfree : Integer, The amount of physical RAM, in kibibytes, left unused by the system.

memtotal

Retrieve the Total amount of usable RAM, in kibibytes, which is physical RAM minus a number of reserved bits and the kernel binary code..

memtotal();

Parameters

• None.

Return

• memtotal : Integer, Total amount of usable RAM, in kibibytes, which is physical RAM minus a number of reserved bits and the kernel binary code.

mlocked

Retrieve the The total amount of memory, in kibibytes, that is not evictable because it is locked into memory by user programs..

mlocked();

Parameters

• None.

Return

• mlocked : Integer, The total amount of memory, in kibibytes, that is not evictable because it is locked into memory by user programs.

nfsunstable

Retrieve the The amount, in kibibytes, of NFS pages sent to the server but not yet committed to the stable storage..

nfsunstable();

Parameters

• None.

Return

• nfsunstable : Integer, The amount, in kibibytes, of NFS pages sent to the server but not yet committed to the stable storage.

pagetables

Retrieve the The total amount of memory, in kibibytes, dedicated to the lowest page table level..

pagetables();

Parameters

• None.

Return

• pagetables : Integer, The total amount of memory, in kibibytes, dedicated to the lowest page table level.

shmem

Retrieve the The total amount of memory, in kibibytes, used by shared memory (shmem) and tmpfs..

shmem();

Parameters

• None.

Return

• shmem : Integer, The total amount of memory, in kibibytes, used by shared memory (shmem) and tmpfs.

slab

Retrieve the The total amount of memory, in kibibytes, used by the kernel to cache data structures for its own use..

slab();

Parameters

• None.

Return

• slab : Integer, The total amount of memory, in kibibytes, used by the kernel to cache data structures for its own use.

sreclaimable

Retrieve the The part of Slab that can be reclaimed, such as caches..

sreclaimable();

Parameters

• None.

Return

• sreclaimable : Integer, The part of Slab that can be reclaimed, such as caches.

sunreclaimable

Retrieve the The part of Slab that cannot be reclaimed even when lacking memory..

sunreclaimable();

Parameters

• None.

Return

• sunreclaimable : Integer, The part of Slab that cannot be reclaimed even when lacking memory.

swapcached

Retrieve the The amount of memory, in kibibytes, that has once been moved into swap, then back into the main memory, but still also remains in the swapfile. This saves I/O, because the memory does not need to be moved into swap again..

swapcached();

Parameters

• None.

Return

• swapcached : Integer, The amount of memory, in kibibytes, that has once been moved into swap, then back into the main memory, but still also remains in the swapfile. This saves I/O, because the memory does not need to be moved into swap again.

swapfree

Retrieve the The total amount of swap free, in kibibytes..

swapfree();

Parameters

• None.

Return

• swapfree : Integer, The total amount of swap free, in kibibytes.

swaptotal

Retrieve the The total amount of swap available, in kibibytes..

swaptotal();

Parameters

• None.

Return

• swaptotal : Integer, The total amount of swap available, in kibibytes.

timestamp

Retrieve the represents the time of the operation..

timestamp();

Parameters

• None.

Return

• timestamp : Long, represents the time of the operation.

unevictable

Retrieve the The amount of memory, in kibibytes, discovered by the pageout code, that is not evictable because it is locked into memory by user programs..

unevictable();

Parameters

• None.

Return

• unevictable : Integer, The amount of memory, in kibibytes, discovered by the pageout code, that is not evictable because it is locked into memory by user programs.

vmallocchunck

Retrieve the The largest contiguous block of memory, in kibibytes, of available virtual address space..

vmallocchunck();

Parameters

• None.

Return

• vmallocchunck : Integer, The largest contiguous block of memory, in kibibytes, of available virtual address space.

vmalloctotal

Retrieve the The total amount of memory, in kibibytes, of total allocated virtual address space..

vmalloctotal();

Parameters

• None.

Return

• vmalloctotal : Integer, The total amount of memory, in kibibytes, of total allocated virtual address space.

vmallocused

Retrieve the The total amount of memory, in kibibytes, of used virtual address space..

vmallocused();

Parameters

• None.

Return

• vmallocused : Integer, The total amount of memory, in kibibytes, of used virtual address space.

writeback

Retrieve the The total amount of memory, in kibibytes, actively being written back to the disk..

writeback();

Parameters

• None.

Return

• writeback : Integer, The total amount of memory, in kibibytes, actively being written back to the disk.

writebacktmp

Retrieve the The amount of memory, in kibibytes, used by FUSE for temporary writeback buffers..

writebacktmp();

Parameters

• None.

Return

• writebacktmp : Integer, The amount of memory, in kibibytes, used by FUSE for temporary writeback buffers.

data

Returns every available seed.

data();

Parameters

• None.

Returns

• MemoryData